Cast[]
Version 1[]
- Numbuh 1 as Jimmy Neutron
- Numbuh 2 as Carl Wheezer
- Number 4 as Sheen Estevez
- Numbuh 362 as Cindy Vortex
- Numbuh 3 as Libby Folfax
- Numbuh 5 as Elke Elkberg
- Ace/The Kid as Nick
- Mr. Uno as Mr. Neutron
- Mrs. Uno as Mrs. Neutron
- Father as King Goobot
- Grandfather as Ooblar
- Count Spankulot as Professor Calamitous
- Cree Lincoln as Beautiful Gorgeous
- Gramma Stuffum as Grandma Taters
- Heinrich Von Marzipan as Eustace Strych
- Toiletnator as Blix Strych
- Negative Numbuh 1 as Evil Jimmy Neutron
- Negative Numbuh 2 as Evil Carl Wheezer
- Negative Numbuh 3 as Evil Libby Folfax
- Negative Numbuh 4 as Evil Sheen Estevez
- Negative Numbuh 362 as Evil Cindy Vortex
Version 2[]
- Numbuh 4 as Jimmy Neutron
- Numbuh 2 as Carl Wheezer
- Numbuh 1 as Sheen Estevez
- Numbuh 3 as Cindy Vortex
- Numbuh 5 as Libby Folfax
- Ace/The Kid as Nick
- Kevin (from Ed, Edd n Eddy) as Butch Pakovski
- Mr. Beatles as Hugh Neutron
- Mrs. Beatles as Judy Neutron
- Father as King Goobot
- Grandfather as Ooblar
- Negative Numbuh 4 as Evil Jimmy Neutron
- Negative Numbuh 2 as Evil Carl Wheezer
- Negative Numbuh 3 as Evil Cindy Vortex
- Negative Numbuh 1 as Evil Sheen Estevez
- Negative Numbuh 5 as Evil Libby Folfax
Version 3[]
- Numbuh 1 as Jimmy Neutron
- Numbuh 2 as Carl Wheezer
- Number 4 as Sheen Estevez
- Numbuh 362 as Cindy Vortex
- Numbuh 5 as Libby Folfax
- Ace/The Kid as Nick
- Mr. Uno as Mr. Neutron
- Mrs. Uno as Mrs. Neutron
- Father as King Goobot
- Grandfather as Ooblar
- Count Spankulot as Professor Calamitous
- Cree Lincoln as Beautiful Gorgeous
- Gramma Stuffum as Grandma Taters
- Heinrich Von Marzipan as Eustace Strych
- Toiletnator as Blix Strych
- Negative Numbuh 1 as Evil Jimmy Neutron
- Negative Numbuh 2 as Evil Carl Wheezer
- Negative Numbuh 5 as Evil Libby Folfax
- Negative Numbuh 4 as Evil Sheen Estevez
- Negative Numbuh 362 as Evil Cindy Vortex
- Rolf (from Ed, Edd n Eddy) as Paul the Three Eyed Monkey